How to output the title header in ALV

1. Declare Variables
Data: gt_list_top_of_page type slis_t_listheader.
Data: gt_events type slis_t_event.

2. Define a form for ALV to call back
*---------------------------------------------------------------------*
* Form top_of_page *
*---------------------------------------------------------------------*
*---------------------------------------------------------------------*
Form top_of_page.

Call function 'reuse _ alv_commentary_write'
Exporting
* I _logo = 'htmlcntl _ testhtm2_saplogo'
I _logo = 'enjoysap _ logo'
It_list_commentary = gt_list_top_of_page.
Endform.

3. Define the internal table form for entering the output content in the ALV Header
Form e04_comment_build using e04_lt_top_of_page type slis_t_listheader.
Data: ls_line type slis_listheader.
*
* Listen überschrift: typ H
Clear ls_line.
LS_LINE-TYP = 'H'. "displayed in black, large
* LS_LINE-KEY: not used for this type
LS_LINE-INFO = text-100.
Append ls_line to e04_lt_top_of_page.
* Kopfinfo: typ s
Clear ls_line.
LS_LINE-TYP ='s '. "displayed as standard font size
LS_LINE-KEY = text-101. "displayed as standard font size, but in black
LS_LINE-INFO = text-102. "displayed as standard font size
Append ls_line to e04_lt_top_of_page.
LS_LINE-KEY = text-103.
LS_LINE-INFO = text-104.
Append ls_line to e04_lt_top_of_page.
* Aktionsinfo: typ
Clear ls_line.
LS_LINE-TYP = 'A'. "displayed in Italic
* LS_LINE-KEY: not used for this type
LS_LINE-INFO = text-105.
Append ls_line to e04_lt_top_of_page.
Endform.

4. Create an ALV event table form. Replace the slis_ev_top_of_page event handler function name of the table in the ALV event with the custom form.
Form e03_eventtab_build using e03_lt_events type slis_t_event.
Data: ls_event type slis_alv_event.
*
Call function 'reuse _ alv_events_get'
Exporting
I _list_type = 0
Importing
Et_events = e03_lt_events.
Read Table e03_lt_events with key name = slis_ev_top_of_page
Into ls_event.
If SY-SUBRC = 0.
Move 'top _ of_page 'to LS_EVENT-FORM.
Append ls_event to e03_lt_events.
Endif.
Endform.

5. Call Functions
Perform e03_eventtab_build using gt_events [].
Perform e04_comment_build using gt_list_top_of_page [].
Call function 'reuse _ alv_grid_display'
Exporting
I _callback_program = sy-repid
It_fieldcat = gt_fieldcat []
It_sort = gt_sort []
It_events = gt_events []
Tables
T_outtab = gt_sflight.
Related: http://blog.csdn.net/compassbutton/archive/2007/01/31/1499218.aspx
Http://blog.csdn.net/CompassButton/archive/2006/12/01/1424228.aspx